The STIHL 41474004720 is an authentic OEM ignition module designed to provide reliable spark to the engine of a wide range of STIHL outdoor power equipment. This critical component ensures consistent starting and optimal engine performance for models including trimmers, brushcutters, and pole pruners. It is a direct replacement part, engineered to meet original equipment specifications for perfect fit and function. Confirmed fitment for numerous STIHL models such as FS 120, FS 250, FS 450, HT 250, and KM 130.